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CN-121975423-A - High-adhesion water-based plastic steel paint and preparation method thereof

CN121975423ACN 121975423 ACN121975423 ACN 121975423ACN-121975423-A

Abstract

The invention discloses a high-adhesion water-based plastic steel paint which comprises, by mass, 20-30 parts of polyurethane acrylate emulsion, 20-30 parts of acrylic emulsion, 20-30 parts of titanium dioxide, 6-8 parts of hydroxy acrylic acid dispersion emulsion, 2-5 parts of film forming auxiliary agent and the balance of auxiliary agent and water, wherein the hydroxy acrylic acid dispersion emulsion is used as a pigment dispersing agent and a film forming participation component. The high-adhesion water-based plastic steel paint has excellent adhesion, excellent environmental protection, excellent comprehensive performance and simple construction, can be directly coated on plastic substrates such as plastic steel (PVC), ABS and the like, realizes lasting and attractive decoration and protection effects, and is suitable for direct DIY construction of customers.

Inventors

  • HU LANGTAO

Assignees

  • 福建三青涂料有限公司

Dates

Publication Date
20260505
Application Date
20260206

Claims (8)

  1. 1. The high-adhesion water-based plastic steel paint is characterized by comprising the following components in parts by mass: 20-30 parts of polyurethane acrylic ester emulsion; 20-30 parts of acrylic emulsion; 20-30 parts of titanium dioxide; 6-8 parts of hydroxy acrylic acid dispersion emulsion; 2-5 parts of film forming auxiliary agent; The balance comprises auxiliary agent and water; wherein, the hydroxy acrylic acid dispersion emulsion is used as pigment dispersant and film forming participation component.
  2. 2. The high-adhesion water-based plastic steel paint as claimed in claim 1, wherein the polyurethane acrylic ester emulsion is Crysol ℃ 6140 of Wanhua chemical group Co., ltd, and the solid content is 45% -47%.
  3. 3. The high-adhesion water-based plastic steel paint as claimed in claim 1, wherein the acrylic emulsion is a Pasteur (China) Limited JoncrylR ap acrylic emulsion with a solid content of 40% -43%.
  4. 4. The high-adhesion water-based plastic steel paint as claimed in claim 1, wherein the hydroxyl acrylic acid dispersion emulsion is a high-density new resin (China) company SETAQUA-6302 hydroxyl acrylic acid emulsion with a solid content of 49-51%.
  5. 5. The high-adhesion water-based plastic-steel paint as claimed in claim 1, wherein the rest auxiliary agents comprise 0.1-1 part of humectant, 0.1-1 part of defoamer, 0.1-1 part of wetting agent, 1-2 parts of wax emulsion, 0.1-1 part of flatting agent, 0.1-1 part of preservative, 0.1-1 part of mildew inhibitor, 0.1-2 parts of anti-settling agent and a proper amount of thickener.
  6. 6. The high adhesion aqueous plastic-steel paint of claim 5, wherein: The film forming additive is dipropylene glycol butyl ether; the humectant is propylene glycol; The defoamer is polyether siloxane copolymer emulsion; the wetting agent is an organosilicon gemini structure surfactant; the thickener is an associative polyurethane thickener; the wax emulsion is polyethylene wax; the leveling agent is a modified polyether siloxane copolymer; The preservative is CITMIC and MCI mixture; the mildew preventive is zinc pyrithione; the anti-settling agent is polyamide wax amine salt.
  7. 7. A method for preparing the high-adhesion water-based plastic steel paint as claimed in any one of claims 1 to 6, which is characterized by comprising the following steps: mixing part of water, the hydroxy acrylic acid dispersion emulsion, titanium pigment and part of auxiliary agent, and continuously stirring at 500-600rpm for 15-20min to obtain a first mixed solution; grinding and dispersing the first mixed solution, taking out and filtering after 30-40min to obtain a second mixed solution; and thirdly, mixing the polyurethane acrylic ester emulsion, the acrylic emulsion, the second mixed solution, the film forming auxiliary agent and the rest auxiliary agent under the stirring condition of 600-700rpm, stirring at a high speed of 900-1100rpm for 10-15min, adding a thickening agent to adjust the viscosity, and keeping the stirring rotation speed unchanged and continuously stirring for 5-8min to obtain the high-adhesion water-based plastic steel paint.
  8. 8. The method of claim 7, wherein in the second step, vibration grinding is adopted, the grinding medium is zirconium beads, the grinding time is 30-40min, and the mass ratio of the zirconium beads to the first mixed solution is (1.3-1.5): 1.

Description

High-adhesion water-based plastic steel paint and preparation method thereof Technical Field The invention relates to the technical field of water-based paint, in particular to high-adhesion water-based plastic steel paint and a preparation method thereof. Background At present, plastic substrates such as plastic steel (PVC), ABS and the like in the market have low surface energy and weak polarity, and conventional water-based paint is difficult to wet and adhere. Most customers need to construct primer to enhance adhesive force before constructing, or use multi-component paint, and the paint is mixed before using, so that the construction is inconvenient and complicated. There are also solvent-based paints which contain a large amount of Volatile Organic Compounds (VOCs), are harmful to the environment and to the health of the human body, and have a long lasting smell after construction and slow drying. The conventional common plastic paint has poor water resistance, alcohol resistance, friction resistance and weather resistance, is easy to generate the problems of foaming, falling off, light loss and the like, and is difficult to meet the market demand. Disclosure of Invention The invention aims to overcome the technical defects that the adhesive force of the water-based plastic steel paint in the prior art is poor, the primer is required to be relied on, or the comprehensive properties such as paint film hardness, water resistance and the like are sacrificed for improving the adhesive force, and the high performance and the high environmental protection are difficult to be achieved in a single-component water-based system. Aiming at the defects of the prior art, the invention provides the high-adhesion water-based plastic steel paint and the preparation method thereof, and the water-based plastic steel paint has excellent adhesion, excellent environmental protection, excellent comprehensive performance and simple construction, can be directly coated on plastic substrates such as plastic steel (PVC), ABS and the like, realizes lasting and attractive decoration and protection effects, and is suitable for direct DIY construction of customers. The high-adhesion water-based plastic steel paint comprises, by mass, 20-30 parts of polyurethane acrylate emulsion, 20-30 parts of acrylic emulsion, 20-30 parts of titanium dioxide, 6-8 parts of hydroxy acrylic dispersion emulsion, 2-5 parts of film forming auxiliary agent, and the balance of auxiliary agent and water, wherein the hydroxy acrylic dispersion emulsion is used as a pigment dispersing agent and a film forming participation component. Furthermore, the polyurethane acrylic ester emulsion adopts Crysol ℃ and 6140 of Wanhua chemical group Co., ltd, and the solid content is 45-47%. Furthermore, the acrylic emulsion adopts the acrylic emulsion (JoncrylR ap acrylic emulsion) of Pasteur (China) Limited company JoncrylR, and the solid content is 40-43 percent. Furthermore, the hydroxy acrylic acid dispersion emulsion adopts a Zhan Xin resin (China) Limited company SETAQUA6302,6302 hydroxy acrylic acid emulsion, and the solid content is 49-51%. Further, the rest auxiliary agents comprise 0.1-1 part of humectant, 0.1-1 part of defoamer, 0.1-1 part of wetting agent, 1-2 parts of wax emulsion, 0.1-1 part of flatting agent, 0.1-1 part of preservative, 0.1-1 part of mildew inhibitor, 0.1-2 parts of anti-settling agent and a proper amount of thickening agent. The film forming auxiliary agent is dipropylene glycol butyl ether, the humectant is propylene glycol, the antifoaming agent is polyether siloxane copolymer emulsion, the wetting agent is organosilicon gemini structure surfactant, the thickening agent is associated polyurethane thickening agent, the wax emulsion is polyethylene wax, the leveling agent is modified polyether siloxane copolymer, the preservative is a mixture of CITMIC and MCI, the mildew preventive is zinc pyrithione, and the anti-settling agent is polyamide wax amine salt. On the other hand, the preparation method of the high-adhesion water-based plastic steel paint comprises the following steps of firstly mixing part of water, hydroxyl acrylic acid dispersion emulsion, titanium pigment and part of auxiliary agent, continuously stirring at 500-600rpm for 15-20min to obtain a first mixed solution, secondly grinding and dispersing the first mixed solution, taking out and filtering after 30-40min to obtain a second mixed solution, thirdly mixing polyurethane acrylic ester emulsion, acrylic acid emulsion, the second mixed solution, film forming auxiliary agent and the rest of auxiliary agent under the stirring condition of 600-700rpm, stirring at a high speed for 10-15min, adding a thickening agent to adjust viscosity, and continuously stirring at a constant stirring speed for 5-8min to obtain the high-adhesion water-based plastic steel paint. Further, in the second step, vibration grinding is adopted, the grinding medium is zirconium beads, the grinding